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3d Video Freezes


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#1 alexc1105

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Posted 02 December 2007 - 05:21 PM

I'm having some interesting video problems. First here is my system:

ASUS A8N-SLI Premium
AMD X2 4400+ (Toledo Core)
MSI GeForce 7600GT (Two in SLI)
2 GB OCZ Titanium (2 x 1GB)
Western Digital Caviar 250GB (Windows XP Pro)
Western Digital Caviar 320GB (Storage)
Antec SmartPower 500W

About a month ago while playing Flight Sim X, my system completely froze to the point that it required a system restart (no alt-tab, etc.). Since then I've had similar experiences in other 3D games such as CSS, Madden 08, Stalker, and Portal. I've tried the following to counteract the problem with no avail.

1. Completely disassembled, cleaned, and reassembled the computer.

2. Switched the slots the ram was in.

3. Switch the slots the graphics cards were in (This had an unusual result. I switched the slots and now when the game freezes, the sound will continue for about 30 seconds, then it will make a loop/crash sound, then the sound will return to normal, and the game will continue as normal. The same thing happens when I take one of the graphics cards out.)

4. I've ran Prime95 to try to induce a CPU crash, but it never happened.

5. I've reinstalled Windows XP, along with many different driver releases. Currently I have the ForceWare 163.71 drivers installed.

And that is where I'm at now. If you have any ideas or suggestions, please let me know.

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#2 DaChew

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Posted 02 December 2007 - 06:27 PM

You may have overstressed that marginal power supply, once they have been pushed too hard they never recover.

You seemed to have covered most of the more likely scenarios.

What are the 12 and 5 volt rails readings?
Chewy

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#3 RLI

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Posted 02 December 2007 - 11:57 PM

I would install Ultimate Boot CD and run memtest86+ for 6 hours minimum, and post the results if you could.
I would then install PC Wizard and post the temp. and voltage screen, if you would.

http://www.ultimatebootcd.com/
http://www.cpuid.com/pcwizard.php

#4 alexc1105

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Posted 03 December 2007 - 01:34 AM

You may have overstressed that marginal power supply, once they have been pushed too hard they never recover.

You seemed to have covered most of the more likely scenarios.

What are the 12 and 5 volt rails readings?

I don't have a multimeter to check the voltages but ASUS PCProbe records the voltages at 4.95 and 12.22 while PC Wizard 2008 recorded them at 4.95 and 11.61.

Edited by alexc1105, 03 December 2007 - 01:58 AM.


#5 alexc1105

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Posted 03 December 2007 - 01:41 AM

I would install Ultimate Boot CD and run memtest86+ for 6 hours minimum, and post the results if you could.
I would then install PC Wizard and post the temp. and voltage screen, if you would.

http://www.ultimatebootcd.com/
http://www.cpuid.com/pcwizard.php

Yeah I forgot to mention that I'd been watching the temps. The CPU and mb have stayed both below 50C but I haven't been able to watch the graphics cards as easily. I took the following picture at idle and will post the results to memtest86+ tomorrow. Let me know if you want any other info.

Attached Files



#6 DaChew

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Posted 03 December 2007 - 09:14 AM

the 12 volt rail may be weak, do those 7600GT's have an option for direct power or is it all coming from the pci-e slot?

seperating the 2 12 volt rails might be an option(rearranging power cables)

It would be nice to have a premium 3 12 volt rail PS to test with?

Another thought have you benched each card running by itself with 3dmark or another program?

with 1 card the minimum is 400 watts but 550 watts for sli according to nvidia
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#7 RLI

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Posted 03 December 2007 - 10:20 AM

the video cards are running a bit hot for no load, and I do see hints of not enough power getting to everything.

I would recommend you upgrade the PSU to a minimum of 600watts.

#8 DaChew

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Posted 03 December 2007 - 10:25 AM

I had another thought, those fans and covers on the video cards look like a real pain to clean, might be a good idea to blow them out with some strong compressed air while pulled from the computer?

That could explain some of the heat and power issues(if there are any?)

Edited by DaChew, 03 December 2007 - 10:29 AM.

Chewy

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#9 alexc1105

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Posted 03 December 2007 - 11:59 AM

the 12 volt rail may be weak, do those 7600GT's have an option for direct power or is it all coming from the pci-e slot?

seperating the 2 12 volt rails might be an option(rearranging power cables)

It would be nice to have a premium 3 12 volt rail PS to test with?

Another thought have you benched each card running by itself with 3dmark or another program?

with 1 card the minimum is 400 watts but 550 watts for sli according to nvidia

The cards don't have a power connection on them. All the power is ran through the board with a legacy connector on the mb.

When I disassembled and cleaned I used compressed can air to blow out all the cards and fans and they were pretty dusty. I didn't notice any temperature change after this though.

Btw, what do you want me to look for with the benchmarks? Whether it freezes?

Edited by alexc1105, 03 December 2007 - 12:25 PM.


#10 alexc1105

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Posted 03 December 2007 - 12:10 PM

the video cards are running a bit hot for no load, and I do see hints of not enough power getting to everything.

I would recommend you upgrade the PSU to a minimum of 600watts.

I let memtest86+ run for 9.5 hours and here is the summary:

Athlon 64 X2 2211 MHz
L1 Cache: 128K 18125MB/s
L2 Cache: 1024K 4503MB/s
Memory: 2048M 1919MB/s
Chipset: nVidia nForce4 (ECC: Disabled)
Settings: RAM: 201MHz (DDR 402) / CAS: 2-3-2-5 / DDR-1 (128 bits)

WallTime: 9:27:12
Cached: 2048M
RsvdMem: 276M
MemMap: e820-Std
Cache: on
ECC: off
Test: Std
Pass: 12
Errors: 0
ECC Errs:


When I first built this computer about a year and a half ago, I used an Antec SmartPower 2.0 450W PS that came with my case. I never had any of these problems with it. Then about a year ago, my computer wouldn't boot and I isolated the problem was in the extra 4 pins of the 24 pin connector vs an old 20 pin. I had to replace the PS with what I have now. Is there any connection between these problems?

#11 DaChew

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Posted 03 December 2007 - 12:51 PM

Is there any connection between these problems?


sounds like the same problem, not enough power for both vid cards and all on one rail? 12v+

if you relax settings and use only one card and disconnect some of the extra devices do games freeze?

For the test it shouldn't freeze? I suggested testing cards singly, you can tell if one is bad if it tests poorly?

Just looking for more clues as we stab in the dark?
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#12 RLI

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Posted 03 December 2007 - 03:58 PM

okay, the board needs the following power plugs to be completely filled and snugly connected. I need to know that that is indeed what you have done.

1. 24 pin main (right above the floppy plug)
2. the 4 pin 12v rail (next to the heat sink behind the rear panel plugs)
3. the molex connector (next to the blue PCIex slot)

http://www.asus.com/999/images/products/539/539_l.jpg

Edited by RLI, 03 December 2007 - 03:58 PM.


#13 Sneakycyber

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Posted 03 December 2007 - 04:00 PM

3Dmark will give you standard test results to compare your score with. You should be able to tell if the card is performing badly.
Chad Mockensturm 
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#14 alexc1105

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Posted 03 December 2007 - 04:55 PM

okay, the board needs the following power plugs to be completely filled and snugly connected. I need to know that that is indeed what you have done.

1. 24 pin main (right above the floppy plug)
2. the 4 pin 12v rail (next to the heat sink behind the rear panel plugs)
3. the molex connector (next to the blue PCIex slot)

http://www.asus.com/999/images/products/539/539_l.jpg

All of those connections are secure.

#15 RLI

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Posted 03 December 2007 - 05:19 PM

PC Wizards benchmark for video is based on and matches 3Dbencmark.

I'd say since everything else has checked out so far, it has to be the PSU.




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